LTC4054-4.2/LTC4054X-4.2
W W U W
ABSOLUTE AXI U RATI GS
(Note 1)
U W
U
PACKAGE/ORDER I FOR ATIO
Input Supply Voltage (VCC) ....................... –0.3V to 10V
PROG............................................. –0.3V to VCC + 0.3V
BAT.............................................................. –0.3V to 7V
CHRG........................................................ –0.3V to 10V
BAT Short-Circuit Duration .......................... Continuous
BAT Pin Current ................................................. 800mA
PROG Pin Current................................................ 800µA
Maximum Junction Temperature .......................... 125°C
Operating Ambient Temperature Range
ORDER PART
TOP VIEW
NUMBER
CHRG 1
GND 2
BAT 3
5 PROG
LTC4054ES5-4.2
LTC4054XES5-4.2
4 V
CC
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
S5 PART MARKING
TJMAX = 125°C, (θJA = 80°C/ W TO
150°C/W DEPENDING ON PC BOARD LAYOUT)
(N0TE 3)
LTH7
LTADY
(Note 2) .............................................. –40°C to 85°C
Storage Temperature Range ................. –65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
Input Supply Voltage
Input Supply Current
●
4.25
6.5
V
CC
I
Charge Mode (Note 4), R
Standby Mode (Charge Terminated)
= 10k
●
●
●
300
200
25
2000
500
50
µA
µA
µA
CC
PROG
Shutdown Mode (R
Not Connected,
< V , or V < V )
BAT CC UV
PROG
V
CC
V
Regulated Output (Float) Voltage
BAT Pin Current
0°C ≤ T ≤ 85°C, I = 40mA
BAT
4.158
4.2
4.242
V
FLOAT
A
I
R
R
= 10k, Current Mode
= 2k, Current Mode
●
●
●
93
465
0
100
500
–2.5
±1
107
535
–6
±2
±2
mA
mA
µA
µA
µA
BAT
PROG
PROG
Standby Mode, V
= 4.2V
BAT
Shutdown Mode (R
Not Connected)
< V , R = 2k (Note 5)
TRIKL PROG
PROG
Sleep Mode, V = 0V
±1
CC
I
Trickle Charge Current
V
●
20
2.8
60
45
2.9
80
70
3.0
mA
V
TRIKL
BAT
V
V
V
V
V
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage
R
PROG
R
PROG
= 10k, V
Rising (Note 5)
TRIKL
TRHYS
UV
BAT
= 10k (Note 5)
110
3.92
300
mV
V
V
V
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
From V Low to High
●
●
3.7
150
3.8
200
CC
CC
CC
mV
UVHYS
MSD
Manual Shutdown Threshold Voltage
PROG Pin Rising
PROG Pin Falling
●
●
1.15
0.9
1.21
1.0
1.30
1.1
V
V
V
V
– V Lockout Threshold Voltage
V
V
from Low to High
from High to Low
70
5
100
30
140
50
mV
mV
ASD
CC
BAT
CC
CC
I
C/10 Termination Current Threshold
R
PROG
R
PROG
= 10k (Note 6)
= 2k
●
●
0.085
0.085
0.10
0.10
0.115
0.115
mA/mA
mA/mA
TERM
V
PROG Pin Voltage
R
= 10k, Current Mode
●
0.93
8
1.0
20
1.07
35
V
µA
V
PROG
PROG
CHRG
CHRG
I
CHRG Pin Weak Pull-Down Current
CHRG Pin Output Low Voltage
Recharge Battery Threshold Voltage
V
= 5V
CHRG
V
I
= 5mA
0.35
150
0.6
CHRG
∆V
V
- V
RECHRG
100
200
mV
RECHRG
FLOAT
405442xf
2
Linear [ Linear ]
